Improvement in cans for packing and transporting paint



H. TUCKER.

Cans for Packing and Transporting Paint, &n.

'No. 134,947. Patentgdlan..14,1873.

AM PHD roilmosmpmc ca MY (osaomvz's mack-sq) "Nrrn S'ra'rns HIRAMTUCKER, OF NEWTON, MASSACHUSETTS.

Specification forming part of Letters Patent No. l3],94?, dated January14, 1873.

To all whom it may concern:

Be it known that I, HIRAM TUCKER, of Newton, in the county of Middlesexand State of Massachusetts, have invented an Improvement in Paint-Cans,8m; and I do hereby declare that the following, taken in connection withthe drawing which accompanies and forms part of this specification, is adescription of my invention sufficient to enable those skilled in theart to practice it. a

In the manufacture of paints it is now customary, to a considerableextent, to put them up ready for use in tin cans, the cap of each canbeing made of very thin sheet metal, which can be readily cut out foraccess to the paint. When the paint is exposed to the (5- tion of theatmosphere by thus cutting f ut the can-head, it rapidly deteriorates,as it annot be perfectly covered; and my invention is particularlydesigned to obviate any tendency to deterioration from opening the can,the invention being applicable to the preservation and transportation ofother thick liquids or semi-solid materials, which are put up in cans tobe gradually consumed when the can is opened.

a In ifiu'nvention I make the can with an outlet at the end, oppositethe head, and into the top of the can I introduce a plunger, (preferablyinade of wood,) which fits snugly into the can, which plunger ispreferably surmounted by a cap or head soldered upon the can in theusual manner to hermetically seal it. When the contents of the can areto be used, the outlet-orifice is opened, and, the can being stood uponits base, the plunger is forced down, causing the paint or othercontents to be discharged as fast, and only as fast, as the plunger ismoved down to displace it, the orilice being stopped when sufficient hasbeen removed, and the plunger at all times fitting so tightly that thecontents of the can will be preserved without injury.

Figure 1 shows a front view of the can and a screw-press by which theplunger is moved. Fig. 2 is a vertical central section of the can andscrew. Fig. 3 shows the can in end view.

a denotes the can, preferably made of cylindrical form, and having anoutlet-tube, 1), extending from one side, just above the base or bottomof the can. 0 denotes the cap or cover, which is soldered upon the canin the usual manner. at denotes the plunger, preferably made of wood,and fitting the cylinder, as seen in Fig. 2. When the can is charged itis filled with the paint or other material it is to contain, leaving,however, just room for entrance of the plunger d. Then the cap 0 is laidupon the can and soldered at its edge, and in the center of this cap ahole, f, may be made, the cap fitting down against the plunger, so thatthere will be a tight joint at this hole, or a leather or other suitabledisk, or a packing-ring being laid under the cap, so as to cover orsurround the hole.

Thus made, the filled can may be packed,

handled, and transported with the same freedom as with commonhermetically-sealed cans.

When the can is to be opened, it is stood upon itsbottom or base, and asuitable pressing-instrument being introduced through the opening f, thecontents may be gradually drawn from the can by opening the tube 12 andforcing the plunger down. For moving the plunger, I prefer to use ascrew-press similar to that shown in the drawing. 9 dcnotes a bed, uponwhich the can is placed so as to stand in upright position, as seen inthe drawing. From this bed extend two rods, h, connected at top by across-beam, i, through which beam a nut-thread is cut to receive ascrew, 70. By turning this screw, its point is brought against theplunger and forces it down, the screw working through the hole f, whenthe cap is made with such hole. With the press the paint or othercontents may be very easily and gradually drawn from the can, and asfast as needed for use, the discharge being interrupted at any time bystopping the orifice b, leaving the contents of the can unexposed, theplunger at all times furnishing a perfect protection to the contents ofthe can, until the .entire quantity of material is consumed, thedelivery-orifice being, of course, kept closed Whenever the liquid isnot running.

The can may be made with a nut-threaded screw cap, the screw that forcesopen the plunger working directly through the nut of the cap. I

It will be seen that, if desired, the cover 0 may be cut out when thecan is to be used.

I claim- 1. A can for holding and transporting paints rrron.

2 ester:

or semi-solid substances, provided with a follower or plunger to forcethe material from the can, substantially as shown and described.

2. In a'can having a plunger, a cap, 0, provided with a central orifice,f, for reaching the plunger without removing the cap of the can.

3. In combination with the fixed head, a nut applied in or to such headto receive the screw which operates the plunger.

4. A can headed at top and at bottom, and having inclosed a solidplunger fitting the sides at all points, the stem of the plunger workingthrough a central opening in the head, substantially as shown anddescribed.

5. In combination with a can constructed substantially as described, apress adapted to be used therewith, substantially as set forth.

HIRAM TUCKER.

Witnesses FRANCIS GOULD, M. W. FROTHINGHAM. o

